Stoker pipe



- .Feb. 20, 1940. I H. T. BLUM 2,191,006

STOKER PIPE Filed Jan. 10, 1939 30 Figure 2 is an enlarged detailed sidecross-secof member 26.

sTATEsr STOKER PIPE Harold. T. *Blum, Glenmont, Ohio, assignor to BriarHill Corporation, Millersburg, Ohio, a corporation of Ohio ApplicationJanuary 10, 1939, Serial No. 250,220 3 Claims. ((31. 131-431) Thepresent invention relates to smoking pipe positiimed perpendicularlyfrom the end therestructures and r especially to pipe strucof. Said walllli'is, as shown, threaded upon its tures providing an arrangement forproducing a p p e cool, dry smoke. A pipe tobacco reservoir it is formedfrom a 5 The principal object of the present invention bular p ec ofmetal av a W i2 and a 5 is to provide a structure and arrangementflange. it e te d perpendicular flOm 0118 611d th 1 1 h 111 deliver thuser a 0 1, dry or said wall l2. Wall it has formed therethrough andtar-free smoke. a series of openings it at a point near the flanged A.further object of ti present invention is to e e Sl ably moun ed 0 on diprovide a Fire "ure and arrangement theremovement within the tobaccoreservoir l4 and 10 1 hi h i 1 t manufacture d yet extending thereacrossis a circular concave plate is capable of b g readily cleansed, while atthe 5 formed p from a metal- Formed same time, fproviding a cool, drysmoke With said plate 55 at the central point thereof is to the user tli an extending portion it having a threaded bore And it is an eeri yimportant object of the fo aXially thereof- Said plate 15 has a 15present invention to provide a smoking pipe that threaded shaft i lextending throu he t a d will not become calced nor cause a loss in thebore of port o t d ShaftWBXtcnds through the tobaccg s r t 111 t, thgame ti probore of a stop and support member 26 to a point vide a cinchion is cool and has had objectionoutside of member I where it terminateswith a able heavy 11 e and watpvapors onden d knurled head it mountedthereon. Said mem- 20 therefrom and which condensed liquids are prehertime an ope 501111661 therethrough in vented from reachi g a userthereof. which is mounted said stop and support member Other objectsoftlie present invention will be 20, which member Sill has portionsthereof bent partly obvious and in part pointed out in the folt Co pl ey e s mid im Sa 5 lowing detailed description of the accompanyshaft l'lhas a radially e tend D OJ t I 3 25 ing drawing. formed upon theperiphery thereof which is re- In the drawing: ceived in a recessextending from the bore of said Figure l a side cross-sectional view ofthe e er wf e y Preventing a Sliding v pipe structure embodying thepresent invention. en Of S d Shaft ll d y 0f he o e tional view of apart of the pipe structure em- A ring l f rm p f y of a h atinsulatbodying the present invention. ing material such as a plastic orwood and hav- Figure 3 is a cross-sectional View taken on line ing atapered bore t3 extending centrally thereof 3-5. of Figure 2. has itsouter Walls shaped to cooperate with the Figure 4 is a perspective viewof the tobacco Walls Of 110N101? 1? to Complete therewith the 1 35reservoir forming part of the pipe structure, and pearance of a smokingpipe bowl. Said ring 4 Figure 5 is a perspective view of the baffles andfurther has bore stepped, forming a longitutheir connection to oneanother as used with dinally extending threaded Wall 77 connected to thepipe structure. said bored by a step 8.

ing now more particularly to the ac- A series of baffles 2d and 25formed from a 40 company lg drawing wherein like reference heatconductive material and carried by a bar 23 characters de ignate likemembers, numeral l in spaced relationship to one another and whichdesignates a tubular sl member having a baffles have a radius equivalentto the interior substantially L-shaped configuration and whichWallsurface'of armii and which are in the form 5 member is to be from alightweight metal of a substantially semi-circular disc are inserted ora plastic. extended arm -5 of said memthrough the open end of arm itbefore the inserber i has detachably connected by means of tion thereinof mouthpiece ii. These baliles are threads at lit-l mouthpiece ii ofthe usual conshaped and positioned relative to bar 23 in such structionand which has a bore 2'! extending amannerthat they will frictionallyengage with axially thereof. Arm of member I, which as the interior Wallsurface of arm 3 to form a series 50 shown, is formed to simulate a pipebowl, extends 0f intelfionnectfid wmpartments s S own in somewhat atright angles from arm 3. The end Figures a Bail 23 Connecting thebaffles of arm or portion of member l is stepped, hav- 24 and is formedfle b e etall c mateing a flange 9 extending perpendicular thererial andWhere it is desirable to form arm 3 havfrom and which flange 9 has anextending wall ing a curved shape, the bafiles may be readily 55inserted within the arm 3 and the bar 23 will, of its own accord, bendto agree with the curve of arm 3. Therefore, the arrangement of bafiiesas disclosed in Figure 5 may be readily used with either pipeconstructions having a straight or curved stem portion.

Metallic and tubular member I has the tobacco reservoir Ml mountedwithin portion 2 by placing flange ll upon the edge of wall Ill. Theinsulated ring 4 is then screwed onto wall I0 and the connecting portion8 of ring 4 will be caused to bear against a heat insulating disc 3| andthereby retain said flange II against wall I0, and at the same time,spacing wall I2 of reservoir I4 I from said wall Ill. Ring 4 is furtherinsulated from portion 2 by a disc 30 of heat insulating materialmounted on the step of portion 2. Further, bore 6 which has its largerdiameter equivalent to the diameter of the interior of reservoir it willbe positioned in line therewith, with bore 6 gradually narrowing as ittapers upwardly.

With tobacco placed in reservoir I4, the user of a pipe according to theconstruction herein described may, upon applying a flame to the tobaccoand drawing through mouthpiece 5, cause the ignition of the tobacco,inasmuch as the suction applied through bore 2'! of mouthpiece 5 willdrawair inwardly through bore 6, through the tobacco and then throughopenings I3 to within the interior of the tubular member II and past thebafiles 25 and 24. The smoke drawn from the burning tobacco willobviously pass through only a small portion of the tobacco before itenters through openings I3 to the large and spacious interior of memberI. As the tobacco is burnt and consumed, the user of the pipe will, byturning knurled knob I9 cause plate iii to be progressively advancedupwardly due to the threaded engagement of rod IT with the bore of saidplate I5. Plate I5, being in frictional engagement with the interior ofwall I2 or where found desirable in a guide and slot arrangement, notshown, with the interior of said wall I21, will be prevented fromrotating and upon the turning of shaft ll will advance upwardly, forcingthe tobacco from reservoir I4 to within bore 6. Bore 6, being tapered,will compress the tobacco forced thereinto and will therefore provide auniform and continuously burning tobacco. As the burnt tobacco will, bythis arrangement, remain within the bore 6, the ashes therefrom canreadily be shaken outwardly without interfering with the burning of theremaining tobacco, due to the remaining tobacco being in its compressedcondition, whereas, of course, the ashes are in a relatively loosestate.

Plate l5, which has an extending portion I6 located centrally thereof,will, upon being advanced to the lower portion of reservoir I4, beautomatically stopped by the portion I6 contacting an extended portion22 of member 20.

The burning of the tobacco will always take place within the bore 6 andthe heat therefrom will be confined within the insulated ring 4 and,therefore, portion 2 will remain cool due to the interposition betweenportion 2 and the bore 6 of the heat insulating discs 30 and 3|. Thewalls I2 of reservoir I4 will contain tobacco or, upon the upwardmovement of plate I5, will be gradually emptied but will be protected byplate I5 and the tobacco thereon from the heat of the burning tobaccowithin bore 6. Therefore, the space 29 between wall I2 and the tubularmember I will remain cool and this is further aided by constructing themember I of a lightweight metal which will readily conduct heattherefrom. By maintaining space 29 in a cool condition, theobjectionable heavy oils, tars and water-vapors coming from openings I3will be caused to condense and drop to the bottom of said member I.Babies 25 and 24 prevent these condensed liquids from reaching themouthpiece 5 and, further, aid in the cooling of the smoke as well asfurther condensing any remaining liquids before the smoke reachesopening 21. The baffles 25 and 24, being in close contact with arm 3,will conduct heat from the smoke to the arm 3 which, being of alightweight material, will readily conduct the heat to the atmospherewhereby the smoke asit passes over ends 26 of each of the baflles willbe gradually cooled before reaching said opening 21.

Space 29 has sufficient volume to hold smoke coming through openings I3to permit the smoke therein to cool between puffs by the smoker. Asplate I5 is gradually moved upward, the volume of space 29 is increasedand, therefore, as the area within bore 6 becomes hotter with thecontinued burning of the tobacco therein and with the resultingraising'of temperature of the smoke from openings I3, the volume ofspace 29 will be increased to accommodate more smoke and, therefore,permit the same to remain longer in order to be sutficiently cooled tocondense the liquids therein before reaching the smoker.

By removing ring 4, tobacco reservoir I4 may be-readily withdrawn fromwithin arm 2 and also by unscrewing mouthpiece 5, the baffles 24 and 25can be removed from arm 3. Therefore, by two simple operations, all ofthe members forming the pipe construction can be removed for cleaningwithout leaving any unaccessible points or hard to get at places whichwould prevent the removal of the condensed liquids therefrom.

My invention is capable of considerable modification but suchmodifications as come within the scope of the appended claims, I deem tobe within the spirit of my invention.

I claim:

1. A smoking pipe comprising an outer bowl of heat-conducting material,a stem having the bore thereof connected to the bore of said bowl, aninner bowl spaced from said outer bowl, means maintaining said innerbowl in spaced relationship to said outer bowl and closing the spacebetween the upper ends of said bowls, said inner bowl including a plateslidably mounted longi tudinally thereof, perforations formed throughthe wall of said inner bowl and positioned substantially at the upperend of said outer bowl, means formed of heat-insulating material havingan opening formed therethrou'gh positioned above the top ends of saidinner and outer bowls, said insulating means being of such thickness ina direction parallel to the axis of said inner bowl that the openingformed through said insulating means will constitute substantially theentire tobacco burning area during the smoking of the pipe and manuallyoperable means connected to said plate and adapted to shift tobaccosupported on said plate upwardly for maintaining the tobacco combustionarea within the opening formed through said insulating means.

2. A smoking pipe comprising an outer bowl of a heat-conductingmaterial, a stem having the bore thereof connected to the'bore of saidbowl,

an inner bowl of heat-conducting material spaced from said outer bowl,said inner bowl consisting of a tube having an outwardly extendingflange at the upper end thereof and a bottom slidably mountedlongitudinally of said tube, perforations formed through the wall ofsaid tube adjacent said flange and positioned substantially at the upperend of said outer bowl, a heat-insulating ring positioned above saidflange and the top of said outer bowl and maintaining said tube and saidouter bowl in assembled relationship, said insulating ring being of suchthickness in a direction parallel to the axis of said tube that thespace within said ring will constitute substantially the entire tobaccoburning area during the smoking of the pipe, and manually operable meansmounted through said outer bowl connected to said bottom and adapted toshift tobacco supported on said bottom upwardly for maintaining thetobacco combustion area within the space formed by said ring.

3. A smoking pipe comprising an outer bowl of heat-conducting material,a stem having the bore thereof connected to the bore of said bowl, aninner bowl of heat-conducting material spaced from said outer bowl, saidinner bowl consisting of a tube having an outwardly extending flange atthe upper end thereof and a bottom slidably mounted longitudinally ofsaid tube, perforations formed through the tube wall adjacent to saidflange and positioned substantiallyat the upper end of said outer bowl,a heat-insulating ring positioned above said flange and the top of saidouter bowl and maintaining said tube and said outer bowl in assembledrelationship, heat-in sulating washers interpositioned between saidinsulating ring and the upper ends of said outer bowl and said innerbowl, said insulating ring being of a thickness in a direction parallelto the axis of said tube so that the bore thereof will constitutesubstantially the entire tobacco burning area during the smoking of thepipe, and manually operable means connected to said bottom and adaptedto shift tobacco supported on said bottom upwardly for maintaining thetobacco combustion area within the space formed by said ring.

HAROLD T. BLUM.

